42mm Objective Diameter, BAK4 Roof Prisms Preserve Color

Need more information about this product? - We'll get back to you ASAP
You must enter a valid email address.
Email me when stock arrives
North Island
South Island

The black 8x42 Outland X Binocular from Celestron features multicoated optics, BAK4 Roof Prisms, a wide angle of view, and weather-proof construction with rubber armouring. While the multicoated lenses increase transmission and image brightness, the Roof Prisms made of BAK4 optical glass preserve true colours. The wide 6.8° angular field of view allows you to see a linear field of 356' at a distance of 1000 yards, and the centre focus with a dioptre allow seeing crisp details as close as 14.8'. The binocular also has a 56-74 mm interpupillary adjustment range, a 5.3 mm exit pupil and 18 mm eye relief.

In addition to optical performance features, the Outlander X presents a number of convenience and construction highlights. The binocular housing is nitrogen-purged water and fogproof, with a smooth black rubberised armouring to ensure a non-slip grip. For easy focusing, there is a large knurled centre focus knob and a ribbed dioptre ring on the right eyepiece. To accommodate anyone with glasses, the eyepieces have twist-up eyecups. If you want to attach the binocular to a tripod, use the threaded hole under the front centre cup with an optional adapter.

Also included with the binocular are a soft neoprene carry pouch, a strap, and protective objective lens cups.

Key Features

Optical Performance

  • 42mm objective diameter
  • Multicoated elements improve image brightness
  • BAK4 Roof Prisms preserve true colour
  • Wide angle viewing: 6.8°

Use and Handling

  • Centre focusing adjustment
  • Dioptre adjustment: ±4
  • Interpupillary range: 56 - 74 mm
  • Eye relief: 18 mm


  • Nitrogen-purged water and fogproof
  • Smooth rubberised armouring provides sure grip
  • Tripod adaptable with an optional tripod mount


Prism Type
Objective Lens Diameter
Angle of View
6.8° (actual)
356' @ 1000 yd / 118.19 m @ 1000 m
Minimum Focus Distance
14.8' / 4.51 m
Exit Pupil Diameter
5.3  mm
Eye Relief
18  mm
Interpupillary Adjustment
56 - 74 mm / 2.20 - 2.91"
Dioptric Correction
Focus Type
Tripod Mount
5.8 x 5 x 2.1" / 147.32 x 127.00 x 53.34  mm
22 oz / 624 g
Celestron 8x42 Outland X Binocular (Black)
RM Product #: